In many fanfictions about Lila and Adrien, their relationship can be quite complex. Sometimes, Lila tries to manipulate Adrien to get closer to his famous family or for her own gain. But Adrien, being the kind-hearted person he is, might initially be deceived by her lies, only to gradually realize her true nature as the story progresses.
In some fanfictions, Lila's scheme against Adrien could be part of a larger plot. She could be working with an enemy of the Miraculous holders. Since Adrien is Chat Noir, she might try to expose his identity or put him in dangerous situations to further her own goals. For example, she could pretend to be in trouble to lure Chat Noir into a trap set by the villains she's allied with.
Well, Lila could be exposed when she tries to claim credit for something that the Miraculous heroes did. For instance, she says she helped Ladybug defeat an akuma when in fact she did nothing. Then, Tikki, Marinette's kwami, could find a way to let everyone know the truth. Maybe she uses her magic in a subtle way to make Lila blurt out the truth.
One possible scenario in a fanfiction could be that Lila finally realizes the error of her ways and decides to make amends with Marinette. She might see how Marinette's kindness has always been genuine despite her lies, and they could gradually become friends. This would be a big character development for Lila.
A really interesting fanfiction idea could be that Lila and Marinette switch personalities for a day. This would be a comical yet thought - provoking situation. Lila would have to deal with Marinette's responsibilities and kindness, while Marinette might struggle with Lila's devious ways. It could lead to both of them having a new perspective on each other.
One possible scenario in a fanfiction where Lila is exposed could be that Marinette finally gathers enough evidence of all of Lila's lies. Maybe she records Lila admitting to her lies when she thinks no one is listening. Then Marinette presents this evidence to Adrien and their friends. They are initially shocked but then realize how they've been manipulated by Lila all this time.
A great fanfiction idea could be that Adrien and Kagami are paired up for a school project. As they work on it, they start to realize that they have more in common than they thought. They could share their dreams and fears, and this new - found closeness might make Adrien question his feelings for Ladybug a bit more.
One possible story could be that Adrien gets akumatized because he feels constantly overshadowed by Ladybug. In this fanfiction, Hawkmoth might prey on his insecurities. As an akumatized form, Adrien could have enhanced physical abilities like super strength and speed. His akumatized look might be a dark version of his Chat Noir costume, with a more menacing appearance.
There are many interesting fanfictions out there about Adrien's car in Miraculous Ladybug. Some might focus on Adrien using his car to go on secret adventures while being Chat Noir. For example, he could use the car to quickly reach a location where an akuma attack is about to happen. The car could also be a place where he has some private moments to think about his double life and his feelings for Ladybug.
There's also 'Marinette's Hidden Talents'. In this fanfic, Adrien discovers some unique skills that Marinette has been hiding. It's a really interesting take as it builds on their characters and the bond between them. It has a lot of cute moments and a bit of mystery too.